Abstract

We demonstrate the Kerr-lens mode-locked ${\mathrm{Pr}}^{3+}\text{:}{\mathrm{LuLiF}}_4$ (Pr:LLF) laser pumped by a blue laser diode (LD). By theoretical calculation of the group velocity dispersion in the laser gain, the compensation was employed for the realization of the continuous-wave mode-locked laser at the wavelength of 604 nm with the pulse width of 1.1 ps which, to the best of our knowledge, is the shortest pulse width in the ${\mathrm{Pr}}^{3+}$ ion doped crystal lasers pumped with LDs. It can be believed that the present Pr:LLF laser should provide some inspiration for the development of the blue LD pumped visible lasers, especially in the mode-locking laser operation.

© 2019 Optical Society of America

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